[MPlayer-dev-eng] [PATCH]: hqdn3d.c: refactorize LowPassMul inmacro, 10%~20% faster on Athlon X2

Zhou Zongyi zhouzongyi at pset.suntec.net
Fri Jan 9 02:51:09 CET 2009

Hi Guillaume,
>Since all this is doing is forcing the alignment of LowPassMul could 
>your please try the attached patch instead, and tell if it provides 
>the same speed-up?

Unfortunately your patch does not bring any speed-up. On Intel CPUs my patch gives less speed-up, ~2%.
And any idea about SIMD optimization on this? I tried SSE2 on deNoiseTemporal but it runs even slower than original C code.

Zhou Zongyi,zhouzongyi at pset.suntec.net 

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